JP2014120817A - Stationary proximity wireless communication device, mobile proximity wireless communication device, proximity wireless communication system, and proximity wireless communication method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable stable radio communication while using an antenna having a narrow directivity.SOLUTION: A stationary proximity wireless communication device includes: a radio wave transmission/reception unit, having a first index indicative of a region over which a mobile proximity wireless communication device is to be held, and an antenna disposed on the region for radiating a radio wave, having a directivity in a direction from a position deviating from an optimally recommended position in the region over which the mobile proximity wireless communication device is to be held, toward the recommended position; and a radio communication unit for modulating/demodulating the radio wave transmitted/received through the antenna.

Description

  Embodiments described herein relate generally to a stationary proximity wireless communication device, a portable proximity wireless communication device, a proximity wireless communication system, and a proximity wireless communication method that perform proximity wireless communication.

  RFID, FeliCa (registered trademark), NFC, TransferJet (registered trademark), and the like are known as non-contact wireless communication technologies performed by bringing a mobile device such as an IC card close to each other. In these technologies, there are wireless communication by electromagnetic induction using a coil and a coupler, and wireless communication in which radio waves are transmitted and received by an antenna such as a UHF band.

  Wireless communication using the UHF band has a relatively long communicable distance and can communicate over several tens of centimeters. For this reason, if the portable device is brought closer to the distance of about 10 cm of the reader, stable communication can be performed, and there are few restrictions on the installation location of the antenna for each of the portable device and the reader. Therefore, it is general for a reader using the UHF band to indicate a rough position where a portable device is held over by a mark or the like.

  However, in wireless communication using a millimeter wave band exceeding 40 GHz, the antenna has a very small shape because the wavelength is short. In the millimeter wave band, the directivity is generally directed in a certain direction in order to provide antenna gain.

  In this way, wireless communication using the millimeter wave band has a much narrower antenna directivity than wireless communication using the UHF band, and the wireless communication using the millimeter wave band is held away from the position that should be clearly indicated on portable devices and readers. Otherwise, good communication may not be possible.

JP 2002-183773 A Japanese Patent Laid-Open No. 2002-352198 JP 2004-355580 A JP 2005-033629 JP 2011-259366 JP

  The present embodiment provides a stationary proximity wireless communication device, a portable proximity wireless communication device, a proximity wireless communication system, and a proximity wireless communication method capable of performing stable wireless communication using an antenna having narrow directivity. It is.

In this embodiment, the first index indicating that the area is the area where the portable proximity wireless communication device is held, and the recommended position that is optimum for holding the portable proximity wireless communication apparatus within the area and the position that is out of the recommended position. A radio wave transmission / reception unit having an antenna disposed in the region that radiates radio waves having directivity in the direction of the position;
A stationary proximity wireless communication device including a wireless communication unit that performs modulation / demodulation processing of radio waves transmitted and received by the antenna is provided.

(A)-(c) is a figure which shows the principal part of the stationary proximity wireless communication apparatus 1 which concerns on 1st Embodiment. 1 is a perspective view showing an appearance of a stationary proximity wireless communication device 1 according to a first embodiment. The block diagram which shows the structure of the principal part of the stationary proximity wireless communication apparatus 1 which concerns on 1st Embodiment. The figure which shows an example of the IC chip 12. FIG. (A) And (b) is a figure which shows an example of the simulation result of the directivity of the loop-shaped antenna 7 of FIG. (A)-(c) is a figure which shows the example which radiates | emits an electromagnetic wave diagonally downward. The figure which shows the principal part of the stationary proximity wireless communication apparatus 1 which concerns on 2nd Embodiment. The figure which shows the modification of FIG. The figure which shows the principal part of the stationary proximity wireless communication apparatus 1 which concerns on 3rd Embodiment. The figure which shows the principal part of the stationary radio | wireless communication apparatus which concerns on 4th Embodiment. The figure which shows the modification of FIG. (A)-(d) is a figure which shows the portable proximity wireless communication apparatus 30 which concerns on 5th Embodiment. FIG. 3 is a block diagram showing a configuration of a main part of the portable proximity wireless communication device 30. It is a figure which shows the portable proximity wireless communication apparatus 30 which concerns on 6th Embodiment, Fig.14 (a) is a front view, FIG.14 (b) is a rear view, FIG.14 (c) is a portable proximity wireless communication apparatus. The figure which shows the installation location of 30 antennas 31 and the radiation direction of a horizontal surface direction, FIG.14 (d) is a figure which shows the radiation direction of the antenna 31 in a side surface direction. The figure which shows the example which provides the two antennas 7 which radiate | emit a radio wave in a 90-degree different direction in the stationary proximity wireless communication apparatus 1. FIG. The figure which shows the example which provides the four antennas 7 which radiate | emit a radio wave in a different direction 90 degree | times, respectively in the stationary proximity wireless communication apparatus 1. FIG.

  Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
FIG. 1 is a diagram showing a main part of a stationary proximity wireless communication apparatus 1 according to the first embodiment, and FIG. 2 is a perspective view showing an appearance of the stationary proximity wireless communication apparatus 1 according to the first embodiment.

  The stationary proximity wireless communication device 1 shown in FIG. 1 is built in a ticket gate machine such as an automatic ticket gate at a station. FIG. 2 shows an example in which the stationary proximity wireless communication device 1 according to the present embodiment is applied to a ticket gate machine 2. Note that the stationary proximity wireless communication device 1 according to the present embodiment is not limited to application to the ticket gate machine 2, and can be applied to various devices that perform proximity wireless communication.

  On the top surface of the stationary proximity wireless communication device 1 of FIG. 2, a radio wave transmission / reception unit 3 that performs proximity wireless communication with a portable proximity wireless communication device possessed by a user is provided. FIG. 1 is an enlarged view of the upper surface of the radio wave transmission / reception unit 3 shown in FIG. Hereinafter, the upper surface direction of the radio wave transmission / reception unit 3 is referred to as a horizontal plane direction, and the normal direction of the upper surface of the radio wave transmission / reception unit 3 is referred to as a vertical direction.

  As shown in FIG. 1A, the top surface 4 of the radio wave transmission / reception unit 3 is provided with, for example, a track-shaped or rectangular first index 5 and a second index 6 provided inside the first index 5. It has been. The first index 5 and the second index 6 may be drawn in a different color or the like on the upper surface 4 of the radio wave transmission / reception unit 3, or a thin film member such as a seal may be attached to the upper surface 4 of the radio wave transmission / reception unit 3. Good.

  The first index 5 is for allowing the user to recognize that this is an area where the portable proximity wireless communication device is held. The second index 6 is for allowing the user to recognize the recommended recommended position for holding the portable proximity wireless communication device. The specific display form of the 1st parameter | index 5 and the 2nd parameter | index 6 is not ask | required. Each index may be identified only by the boundary line, or may be identified by changing the color inside each index. Different marks may be used for identification.

  The second index 6 is displayed in a form that allows the user to easily recognize that the recommended position is, for example, a star mark shown in FIG. In addition, characters such as “touch” and “Touch” may be displayed instead of the mark, or a lighting device such as an LED may be provided instead of the mark to be turned on or blinked.

  In the example of FIG. 1A, the star mark is surrounded by a rectangular line, but this line is not essential. The size and shape of the second index 6 are also arbitrary. However, when a portable proximity wireless communication device is held over the second index 6, radio waves from the antenna 7 in the stationary proximity wireless communication device 1 are stabilized. Since it is assumed that reception is possible, the second index 6 is set to a size and shape that can stably receive radio waves.

  When the user holds the portable proximity wireless communication device over the second index 6, the portable proximity wireless communication device may be brought into contact with the second index 6 or slightly away from the second index 6. Good. When wireless communication with the portable proximity wireless communication device is possible, for example, a display to that effect may be displayed on the first index 5 or the user may be notified by voice.

  In the present embodiment, as shown in FIG. 1A, an antenna 7 is installed at a position deviating from the position of the second index 6 in the area of the first index 5 and in the area of the first index 5. Yes. The antenna 7 radiates radio waves having directivity in the direction of the second index 6. Therefore, when the user holds the portable proximity wireless communication device over the second index 6, the radio wave from the antenna 7 can be received stably.

  FIG. 1B is a diagram showing a radiation direction 10 of radio waves of the antenna 7 of the stationary proximity wireless communication device 1. As shown in the figure, the antenna 7 generally radiates radio waves in a fan shape, and has a maximum gain of radio waves in the direction of the central fan shape. Therefore, preferably, the installation location of the antenna 7 is set so that the direction of the maximum gain of the radio wave radiated from the antenna 7 and the direction of the second index 6 are approximately the same.

  FIG. 1C is a diagram showing a radio wave radiation direction 10 of the antenna 7 in the vertical direction of the radio wave transmission / reception unit 3. As shown in the figure, the antenna 7 is installed on a surface 8 below the upper surface 4 of the radio wave transmission / reception unit 3, and radiates radio waves in a predetermined acute angle range from the installation location in the vertical direction. To do. Therefore, even if the antenna 7 is installed below the upper surface 4 of the radio wave transmission / reception unit 3, radio waves are also emitted above the upper surface 4 of the radio wave transmission / reception unit 3. It is possible to receive radio waves stably with the portable proximity wireless communication device that is held above.

  In the present embodiment, for example, proximity wireless communication is performed using millimeter-wave radio waves within a frequency range of 40 GHz to 80 GHz. The millimeter-wave band wireless communication is characterized by high transmission speed, strong radio wave straightness, and large propagation loss, which makes it difficult for a third party to intercept and secure communication. On the other hand, in order to obtain sufficient received power for stable communication, it is common to provide antenna gain using a narrow directional antenna for either or both of transmission and reception. There is also a disadvantage that directivity is very narrow compared to radio. Therefore, in this embodiment, as described above, the installation location of the antenna 7 of the stationary proximity wireless communication device 1 is devised so that stable wireless communication with the portable proximity wireless communication device is possible.

  FIG. 3 is a block diagram illustrating a configuration of a main part of the stationary proximity wireless communication apparatus 1 according to the first embodiment. The stationary proximity wireless communication device 1 shown in FIG. 3 includes a radio wave transmission / reception unit (first radio wave transmission / reception unit) 3 including an antenna (first antenna) 7 and a radio communication unit (first radio communication unit) 11. The wireless communication unit 11 performs modulation / demodulation processing on radio waves transmitted and received by the antenna 7.

  At least a part of the radio wave transmitting / receiving unit 3 and the wireless communication unit 11 can be formed as an IC chip. For example, FIG. 4 is a diagram showing an example of this type of IC chip 12. FIG. 4 shows an example of the IC chip 12 with a built-in antenna 7 in which the antenna 7 is formed using a bonding wire in the IC chip 12.

  In FIG. 4, a differential feed line 13 formed on the upper surface of the IC chip 12 in which the wireless communication unit 11 is built, two wires 14 extending left and right from the differential feed line 13, and these 2 The loop-shaped antenna 7 is formed by the metal portion 15 that connects the tips of the wires 14 on the dielectric substrate. The directivity range and direction of the loop antenna 7 can be changed by adjusting the inclination angle of the wires 14, the distance between the wires 14, and the like. The wire 14 is formed of the same material as the bonding wire. In FIG. 4, the IC chip 12, the wire 14, and the antenna 7 are accommodated in the same package 20.

  FIG. 5 is a diagram showing an example of a directivity simulation result of the loop-shaped antenna 7 of FIG. When the antenna 7 is provided on the left side surface portion of the IC chip 12 as shown in FIG. 5A, the directivity thereof is within the range 18 in the left side surface direction of the IC chip 12 as shown in FIG. Become. Therefore, radio waves can be emitted in the direction of the installation surface of the IC chip 12.

  In this embodiment, the antenna 7 built in the IC chip 12 as shown in FIG. 5 is provided at the position shown in FIG. 1B, and the position of the second index 6 from this position (on the side of the second index 6 (FIG. 1B)). The maximum gain of the directivity of radio waves is directed to the left side from the dotted line 9. Depending on the mode of use, in a strict sense, the direction of the maximum gain of the radio wave radiated from the antenna 7 may not be the direction of the second index 6, but at least the directivity of the antenna 7 in the horizontal plane direction is It is necessary to point from the position of 7 toward the position of the second index 6. That is, it is necessary to direct the directivity of the antenna 7 to the left side from the dotted line 9 in FIG.

  The conventional stationary proximity wireless communication device 1 generally radiates radio waves from the upper surface 4 of the radio wave transmission / reception unit 3 with directivity directed in the normal direction. On the other hand, the stationary proximity wireless communication device 1 according to the present embodiment uses, for example, a loop-shaped antenna 7 as shown in FIG. 5, as shown in FIGS. 1 (b) and 1 (c). The radio wave is radiated in the direction along the upper surface 4 of the radio wave transmission / reception unit 3. In this embodiment, millimeter-wave wireless communication is assumed in this embodiment, and directivity is narrow. Therefore, stable wireless communication can be performed when the portable proximity wireless communication device is held over the second index 6. This is because the directivity of radio waves is directed from the antenna 7 toward the second index 6.

  In the present embodiment, the radiation direction of the radio wave of the antenna 7 does not necessarily have to be substantially parallel to the upper surface 4 of the radio wave transmission / reception unit 3 and is a direction inclined by a predetermined acute angle with respect to the horizontal plane direction as shown in FIG. But you can. Since the antenna 7 is installed below the upper surface 4 of the radio wave transmission / reception unit 3, the radio wave intensity of the second index 6 does not necessarily become maximum when radio waves are radiated from the antenna 7 substantially parallel to the horizontal plane direction. Therefore, as shown in FIG. 6C, if the radio wave is emitted obliquely upward from the antenna 7 toward the second index 6, the radio wave intensity of the second index 6 can be further increased. Wireless communication can be performed stably.

  In the example of FIG. 6, the radio wave radiation angle in the vertical direction of the radio wave transmission / reception unit 3 is inclined, and the radio wave radiation angle in the horizontal direction shown in FIG. 6B is the same as that in FIG. The installation location of the antenna 7 shown in FIG. 6A is the same as that shown in FIG.

  Thus, in the first embodiment, the second index 6 is provided inside the first index 5, and the antenna 7 installed at a position different from the second index 6 within the range of the first index 5 Since the radio wave is radiated in the direction of the second index 6, when the user holds the portable proximity wireless communication device over the second index 6, the radio wave from the antenna 7 can be received stably. As a result, stable wireless communication is possible even with radio waves having very narrow directivity such as millimeter waves.

(Second Embodiment)
In the second embodiment described below, the second index 6 is omitted.

  FIG. 7 is a diagram showing a main part of the stationary proximity wireless communication device 1 according to the second embodiment, and FIG. 8 is a diagram showing a modification of FIG. The stationary proximity wireless communication device 1 of FIGS. 7 and 8 is obtained by omitting the second index 6 from FIGS. 1 and 6 described above.

  When the user visually recognizes the first index 5, it is considered that as a tacit understanding, the user recognizes that the vicinity of the center of the first index 5 is a position where the portable proximity wireless communication device is held. Therefore, in the present embodiment, the second index 6 is omitted.

  The antenna 7 of the present embodiment is installed at a position deviating from the center position of the first index 5 within the range of the first index 5 (FIGS. 7A and 8A). And the antenna 7 radiates | emits a radio wave toward the center position of the 1st parameter | index 5 (FIG.7 (b), FIG.8 (b)). More preferably, the center direction of the first index 5 from the antenna 7 is set to the maximum intensity of the radio wave. At a minimum, the directivity of the radio wave is directed from the antenna 7 to the side closer to the center of the first index 5 (left side than the dotted line 9 in FIGS. 7B and 8B).

  Further, the radio wave radiated from the antenna 7 may be parallel to the horizontal plane as shown in FIG. 7C, or may be in a predetermined acute angle direction, that is, obliquely upward as shown in FIG. 8C.

  Thus, in the second embodiment, since the second index 6 is omitted, the display form of the upper surface 4 of the radio wave transmitting / receiving unit 3 can be simplified. Even if the second index 6 is omitted, a normal user recognizes that the vicinity of the center of the first index 5 is the holding position of the portable proximity wireless communication device. If the directivity of radio waves is directed, stable wireless communication is possible.

  When the second index 6 is omitted as in the second embodiment, the user holds the portable proximity wireless communication device while predicting the center position of the first index 5 visually while visually recognizing the first index 5. Will do the act. Therefore, compared to the case where the second index 6 is present, it is expected that the variation of the position actually held by the user is increased. Therefore, even if the position where the user holds the portable proximity wireless communication device is slightly shifted, radio waves are radiated obliquely upward from the antenna 7 as shown in FIG. It is desirable to further increase the radio field intensity in a relatively wide range near the center of.

(Third embodiment)
In the third embodiment described below, the user is informed not only of the holding position of the portable proximity wireless communication device but also the holding direction.

  FIG. 9 is a diagram illustrating a main part of the stationary proximity wireless communication device 1 according to the third embodiment. In FIG. 9, as the second index 6, English character information “Touch” is displayed, the English character information indicates the position of the pointer, and the display direction of the English character information, that is, the direction of the head of each English character is displayed. The direction is expressed. In this case, the user holds the portable proximity wireless communication device 30 from the direction of the arrow 19 in FIG. Even if there is no direction notation such as an arrow mark that clearly indicates the direction of the holding on the upper surface 4 of the radio wave transmitting / receiving unit 3, the user can recognize the direction of the holding by the display direction of the English character information.

  In FIG. 9, only the English character information is used as the second index 6, but a mark such as an asterisk that forms part of the first index 5 may be attached at the center position of the English character information. Alternatively, the English character information may be omitted, and only the mark that allows the user to recognize the holding direction such as an arrow may be used as the second index 6.

  In FIG. 9, the antenna 7 is installed at a position off the center line 22 of the second index 6, and from this position, the direction opposite to the direction in which the user holds the portable proximity wireless communication device 30, that is, the direction of the center line 22. Radio waves are emitted toward As a result, as shown in FIG. 9B, the user enters in the direction in which the radio wave from the antenna 7 spreads in the horizontal plane direction, and the portable proximity wireless communication device 30 is held up. Easier to receive radio waves.

  The same applies to the vertical direction, and when the user performs an action of holding, the portable proximity wireless communication device 30 of the user moves the radio wave from the antenna 7 in the vertical direction along the direction of the arrow 21 in FIG. It passes through the side of the stationary proximity wireless communication device 1 through the range that is spread out.

  As described above, in the third embodiment, the antenna 7 is arranged on the side opposite to the direction in which the user holds the portable proximity wireless communication device 30 and radiates radio waves in the direction in which the user enters. Even if it is not particularly conscious, the portable proximity wireless communication device 30 is placed in the direction in which the radio wave emission range is widened, and stable wireless communication is possible.

(Fourth embodiment)
In the fourth embodiment described below, information that informs the user of the holding direction of the portable proximity wireless communication device 30 outside the range of the first index 5 is displayed.

  FIG. 10 is a diagram illustrating a main part of a stationary wireless communication apparatus according to the fourth embodiment. In FIG. 10, character information 23 such as “Please touch the card” is displayed outside the range of the first index 5. The display direction of the character information is a direction in which the user holds the portable proximity wireless communication device 30, and the user performs an action of holding the portable proximity wireless communication device 30 while entering the direction.

  In FIG. 10, a mark such as an asterisk is the first index 5. Similarly to FIG. 9, the antenna 7 is installed so that the radio wave radiation direction 10 spreads in the direction opposite to the direction in which the user holds the portable proximity wireless communication device 30. As a result, the user holds the portable proximity wireless communication device 30 from the direction in which the radio wave radiation direction 10 spreads, and stable wireless communication is possible.

  FIG. 11 is a diagram showing a modification of FIG. 10 and shows an example in which the stationary wireless communication apparatus of FIG. 10 is applied to a ticket gate machine 2 such as an automatic ticket gate. In the example of FIG. 11, an arrow mark 24 indicating the user approach direction is displayed outside the range of the first index 5. In this example, the antenna 7 is installed so that the radiation direction of the radio wave spreads in the direction opposite to the direction in which the user enters.

  In the example of FIG. 11, as shown in FIG. 10, the character information 23 such as “Please touch the card” may be displayed outside the range of the first index 5, or this display may be omitted. Good.

  As described above, in the fourth embodiment, a display indicating at least one of the user approach direction and the portable proximity wireless communication device 30 holding direction is performed outside the range of the first index 5, and the user is displayed according to this display. When the portable proximity wireless communication device 30 is held over, the antenna 7 is installed so that the radiation direction of the radio wave spreads in the direction opposite to the direction in which the portable proximity wireless communication device 30 is held over, so that stable wireless communication can be performed.

(Fifth embodiment)
The fifth embodiment is characterized by the configuration of the portable proximity wireless communication device 30 capable of performing wireless communication with the stationary proximity wireless communication device 1 described in the first to fourth embodiments. It is.

  FIG. 12 is a diagram showing a portable proximity wireless communication device 30 according to the fifth embodiment, and shows an example applied to a smartphone. 12A is a front view, FIG. 12B is a rear view, FIG. 12C is a diagram showing the installation location of the antenna 31 of the portable proximity wireless communication device 30 and the radiation direction in the horizontal plane, FIG. d) is a diagram showing the radiation direction of the antenna 31 in the side surface direction of the portable proximity wireless communication device 30. FIG. Hereinafter, the touch panel operation surface (display panel surface) of the portable proximity wireless communication device 30 is referred to as a front surface, and the opposite surface is referred to as a back surface.

  In the portable proximity wireless communication device 30 of FIG. 12, a camera 32 or the like is disposed on the upper side of the front, and an operation key 33 or the like is disposed on the lower side, so that the user recognizes the upper and lower sides of the portable proximity wireless communication device 30. It has a possible shape. In addition, a camera 34 is disposed on the upper side of the back surface of the portable proximity wireless communication device 30, and the back surface has a shape that allows the user to recognize the top and bottom.

  In addition, on the back surface of the portable proximity wireless communication device 30, an index 35 that indicates the holding position is provided. In the example of FIG. 12B, an index mark is provided with a star mark at the center of an elliptical mark, but the specific display form of the index 35 is not limited.

  As shown in FIG. 12C, the antenna 31 is installed at a position different from the index 35 and radiates radio waves having directivity in the direction of the index 35 from the antenna 31. More specifically, the antenna 31 is provided at a position off the center line 36 in the longitudinal direction of the index 35 and radiates radio waves in the direction of the center line 36. Also, as shown in FIG. 12D, the radio wave from the antenna 31 is radiated downwardly toward the back surface.

  In the portable proximity wireless communication device 30 of FIG. 12, the index 35 on the rear surface is placed over the stationary proximity wireless communication device 1 with the front face up and the upper side of the front face arranged in the user entry direction. It is premised on performing a holding action.

  FIG. 13 is a block diagram illustrating a configuration of a main part of the portable proximity wireless communication device 30. The portable proximity wireless communication device 30 in FIG. 13 includes a radio wave transmission / reception unit (second radio wave transmission / reception unit) 40 with a built-in antenna 31 and a radio communication unit (second radio communication unit) 41. The wireless communication unit 41 performs modulation / demodulation processing of radio waves transmitted and received by the antenna 31.

  The radio wave transmission / reception unit 40 is an indicator 35 indicating a recommended position to be held over the indicated position provided in the stationary proximity wireless communication apparatus 1, and is disposed at a position deviating from the position of the indicator 35 and directed in the direction of the indicator 35. And an antenna (second antenna) 31 that radiates radio waves having the characteristics.

  The portable proximity wireless communication device 30 in FIG. 12 is not provided with a device corresponding to the first index 5 as in the stationary proximity wireless communication device 1 in FIG. This is because the user of the portable proximity wireless communication device 30 recognizes that the facing surface of the touch panel operation surface is a holding surface as an implicit understanding.

  Further, in the portable proximity wireless communication device 30 of FIG. 12, the index 35 corresponding to the second index 6 of FIG. 1 is provided near the center of the back surface, but other members such as a camera are also installed on the back surface. Therefore, the indicator 35 may be provided at a position that does not interfere with these members. Ideally, it is desirable to provide the indicator 35 along the direction of the maximum gain of the radio wave from the antenna 31. In the direction of the maximum gain of the radio wave from the antenna 31, the index 35 may be provided at a position off the center of the back surface.

  The portable proximity wireless communication device 30 may be used by being housed in an opaque protective cover that covers the entire back surface. In this case, even if the index 35 is provided on the back surface, the index 35 is covered with the protective cover and cannot be viewed from the outside. However, in general, when a person sees the indicator 35 on the back surface even once, the person keeps the memory and recognizes the back surface as a holding face even if the indicator 35 is not visible. Therefore, it is considered that providing the index 35 on the back surface has a certain effect.

  Alternatively, when the portable proximity wireless communication device 30 becomes widespread and gets used to the operation that most people in the world hold over, even if there is no indicator 35, it is natural to hold the substantially central portion on the back. It is thought that it becomes. Therefore, providing the indicator 35 in the portable proximity wireless communication device 30 is not always essential.

  In FIG. 12D, the directivity of the antenna 31 in the side surface direction is obliquely downward toward the back surface. However, if the distance between the antenna 31 and the back surface is very short, radio waves are radiated in a direction substantially parallel to the back surface. May be.

  Thus, in the fifth embodiment, the user of the portable proximity wireless communication device 30 is in a state in which the front side of the portable proximity wireless communication device 30 is faced up and the upper side of the front is arranged in the direction of entry. Since it is common to perform an act of holding, the antenna 31 is arranged in accordance with the action, and stable wireless communication with the stationary proximity wireless communication device 1 can be performed.

(Sixth embodiment)
Some portable proximity wireless communication devices 30 cannot be distinguished from each other. In particular, when the entire front is a touch panel and there are no physical buttons, cameras, or the like, it is impossible to distinguish between upper and lower unless the screen is displayed. In the sixth embodiment described below, a portable proximity wireless communication device 30 that cannot distinguish between upper and lower sides is assumed.

  14A and 14B are diagrams showing a portable proximity wireless communication device 30 according to the sixth embodiment. FIG. 14A is a front view, FIG. 14B is a rear view, and FIG. 14C is a portable proximity. The figure which shows the installation location of the antenna 31 of the radio | wireless communication apparatus 30, and the radiation direction of a horizontal surface direction, FIG.14 (d) is a figure which shows the radiation direction of the antenna 31 in a side surface direction.

  The portable proximity wireless communication device 30 in FIG. 14 has no member for distinguishing the top and bottom on either the front or the back. Therefore, another indicator 37 indicating the direction of holding is provided on the back surface around the indicator 35 indicating the holding position. For example, as shown in FIG. 14B, the index 37 is displayed in the form of an arrow, and the direction of the arrowhead of the arrow is a direction in which the arrow 37 is held over.

  In this case, as shown in FIG. 14C, the antenna 31 is installed in the direction of the arrowhead of the arrow, and radio waves are radiated from the antenna 31 in the direction of the holding position. Moreover, about the side surface direction, the antenna 31 radiates | emits an electromagnetic wave in the diagonally downward direction which goes to a back surface.

  The user performs an action of holding the portable proximity wireless communication device 30 along the direction of the arrow on the back surface. As a result, radio waves are radiated from the antenna 31 of the portable proximity wireless communication device 30 in the holding direction. If the antenna 31 of the stationary proximity wireless communication device 1 is installed in this direction, between the two Thus, stable wireless communication can be performed.

  Thus, in the sixth embodiment, when there is no member that can recognize the direction in which the user holds the portable proximity wireless communication device 30 on either the front side or the back side, at least the direction to hold the back side is indicated. Since the index 37 is provided, the user who sees the index 37 can easily grasp the direction in which the index 37 is held, and can perform stable wireless communication with the stationary proximity wireless communication device 1.

(Seventh embodiment)
In the first to sixth embodiments described above, an example in which only one antenna 7 or 31 is provided in the stationary proximity wireless communication device 1 or the portable proximity wireless communication device 30 is shown, but radio waves are radiated in different directions. A plurality of antennas 7 or 31 may be provided.

  FIG. 15 shows an example in which two antennas 7 that radiate radio waves in directions different by 90 degrees are provided in the stationary proximity wireless communication device 1, and FIG. 16 shows four antennas 7 that radiate radio waves in directions different by 90 degrees each. The example provided in the type | mold proximity | contact proximity wireless communication apparatus 1 is shown.

  15 and 16 show an example of the arrangement of the antenna 7 of the stationary proximity wireless communication device 1, but the antenna 7 of the portable proximity wireless communication device 30 may be arranged similarly to FIG. 15 or FIG. Good.

  FIG. 15A shows an example in which one antenna 7 is arranged on the long side of the track-shaped first index 5 and another antenna 7 is arranged on the short side. FIG. 15B shows the radiation range of the radio wave radiated by the long-side antenna 7, and FIG. 15C shows the radiation range of the radio wave radiated by the short-side antenna 7. Radio waves from these two antennas 7 are radiated in the direction of the second index 6 respectively.

  FIG. 16A shows an example in which two antennas 7 are arranged on the long side of the track-shaped first index 5 and the other two antennas 7 are arranged on the short side. FIG. 16B to FIG. 16E show the radiation range of the radio waves radiated by these antennas 7. Radio waves from these four antennas 7 are radiated in the direction of the second index 6 respectively.

  In millimeter wave communication, since directivity is narrow in the first place, if there is only one antenna 7, depending on the installation location of the index 35 (second index 6), radio waves may not reach the installation location sufficiently. Further, the portable proximity wireless communication device 30 is not necessarily held from the direction assumed in advance. For example, if only the antenna 7 having the radiation direction as shown in FIG. 15B is provided in the stationary proximity wireless communication device 1, the portable proximity wireless communication device from the side opposite to the radio wave radiation direction of the antenna 7 is provided. In the case where the user 30 is held over, there is a high possibility that stable wireless communication can be performed. However, when the user holds the portable proximity wireless communication device 30 from a direction different from the antenna 7 by 90 degrees, sufficient radio waves cannot be transmitted and received. There is a fear. Therefore, as shown in FIG. 15C, if the antenna 7 is also provided in a direction different from 90 degrees to radiate radio waves, the user holds the portable proximity wireless communication device 30 from a direction different from the previously assumed direction by 90 degrees. Even when an act is performed, there is a high possibility that normal wireless communication can be performed.

  As the number of antennas 7 is increased, the range in which communication can be performed stably can be increased. However, since the equipment cost increases, the number of antennas 7 may be set as necessary.

  Also, in the portable proximity wireless communication device 30, when the user performs an action, the portable proximity wireless communication device 30 is not always directed in the direction assumed in advance. There is a possibility that the radiation direction of the radio wave from the antenna 7 may be different from the direction in which the antenna 7 is held. Therefore, as shown in FIGS. 15 and 16, if a plurality of antennas 7 that radiate radio waves in different directions are provided in the portable proximity wireless communication device, wireless communication can be performed more stably.

  The aspect of the present invention is not limited to the individual embodiments described above, and includes various modifications that can be conceived by those skilled in the art, and the effects of the present invention are not limited to the contents described above. That is, various additions, modifications, and partial deletions can be made without departing from the concept and spirit of the present invention derived from the contents defined in the claims and equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 Stationary type radio | wireless communication apparatus, 2 Ticket gate machine, 3 Radio wave transmission / reception part, 5 1st parameter | index, 6 2nd parameter | index, 7 Antenna, 11 Radio | wireless communication part, 30 Portable proximity radio | wireless communication apparatus, 31 Antenna, 35 parameter | index, 40 Radio transmission / reception unit, 41 Wireless communication unit

Claims (17)

A first index indicating a region where the portable proximity wireless communication device is held over, and a recommended position that is disposed within the region and is optimal for holding the portable proximity wireless communication device within the region, and a position that is out of position An antenna that emits radio waves having directivity in the direction of the recommended position;
A stationary proximity wireless communication apparatus comprising: a wireless communication unit that performs modulation / demodulation processing of radio waves transmitted and received by the antenna.   2. The stationary proximity wireless communication device according to claim 1, wherein the antenna radiates a radio wave so that a direction of a maximum gain of the radio wave coincides with a direction of the recommended position.   3. The stationary proximity radio according to claim 1, wherein the antenna has directivity in a predetermined angular range along a horizontal plane of the region and radiates a radio wave so as to include the recommended position within the angular range. Communication device.   4. The stationary proximity wireless communication apparatus according to claim 1, wherein the antenna radiates a radio wave in a horizontal plane direction or a predetermined acute angle range from the horizontal plane. The radio wave transmission unit has a second index indicating the recommended position,
The first index and the second index are provided on the upper surface of the region,
4. The stationary proximity wireless communication device according to claim 1, wherein the antenna is disposed at a predetermined position below the upper surface of the region and radiates radio waves obliquely upward. 5.   The antenna is disposed at a position where a holder of the portable proximity wireless communication device can radiate radio waves in a direction opposite to a direction passing through the region while holding the portable proximity wireless communication device. The stationary proximity wireless communication device according to any one of 1 to 5.   7. The stationary proximity wireless communication device according to claim 1, wherein the antenna includes a plurality of antenna units that radiate radio waves having directivity in different directions from the different directions. 8.   The stationary proximity wireless communication device according to any one of claims 1 to 7, wherein the frequency of the radio wave is in a range of 40 GHz to 80 GHz. A first index indicating a recommended position for holding over a designated position provided in a stationary proximity wireless communication device, and a directivity in the direction of the first index, arranged at a position deviating from the position of the first index A radio wave transmission / reception unit having an antenna for emitting radio waves;
A portable proximity wireless communication device comprising: a wireless communication unit that performs modulation / demodulation processing of radio waves transmitted and received by the antenna.   The portable proximity wireless communication device according to claim 9, wherein the antenna radiates a radio wave so that a direction of a maximum gain of the radio wave coincides with a direction of the first index.   The antenna has a directivity in a predetermined angle range along a horizontal plane of a region where the first index is provided, and radiates a radio wave so as to include the direction of the first index in the angle range. The portable proximity wireless communication device according to 9 or 10.   The portable proximity wireless communication according to claim 11, wherein the direction of the maximum gain in the vertical direction of the radio wave radiated from the antenna is a horizontal plane direction of the region or a predetermined acute angle direction inclined from the horizontal plane to the back surface. Communication device.   The portable proximity wireless communication device according to any one of claims 9 to 12, further comprising: a second index indicating that a direction opposite to a direction of a maximum gain of the radio wave radiated from the antenna is a direction held by the owner.   The portable proximity wireless communication device according to claim 9, wherein the first index is provided on a surface opposite to the display panel surface.   The portable proximity wireless communication device according to claim 9, wherein a frequency of the radio wave is in a range of 40 GHz to 80 GHz. A stationary proximity wireless communication device and a portable proximity wireless communication device that perform close proximity wireless communication with each other,
The stationary proximity wireless communication device is:
A first index indicating that the portable proximity wireless communication device is held over the region, and a position that is disposed within the region and that is out of the recommended position that is optimal for holding the portable proximity wireless communication device within the region A first antenna that radiates radio waves having directivity in the direction of the recommended position from,
A first wireless communication unit that performs modulation / demodulation processing of radio waves transmitted and received by the antenna,
The portable proximity wireless communication device is:
A second index indicating a recommended position to be held over the indicated position provided in the stationary proximity wireless communication device, and a directivity in the direction of the second index, which is disposed at a position deviating from the position of the second index. A second antenna that radiates a radio wave having a second radio wave transceiver unit;
A proximity wireless communication system comprising: a second wireless communication unit that performs modulation / demodulation processing of radio waves transmitted and received by the second antenna. A proximity wireless communication method for performing proximity wireless communication between a stationary proximity wireless communication device and a portable proximity wireless communication device,
The stationary proximity wireless communication device has a first index indicating an area where the portable proximity wireless communication device is held over, and an optimum recommended position for holding the portable proximity wireless communication device within the region A radio wave having directivity in the direction of the recommended position is radiated from the first antenna provided at a position away from
The portable proximity wireless communication device includes a second antenna provided at a position away from a position of a second index indicating a recommended position to be held over an indication position provided on the stationary proximity wireless communication device. Radiates radio waves with directivity in the direction of the indicator,
The portable proximity wireless communication device is a proximity wireless communication method in which the radio wave emission direction from the first antenna and the radio wave emission direction from the second antenna are held over the recommended position from a direction opposite to each other.